The performance of polypropylene-strip-reinforced soil retainning strctures was investi-gated through model testing. The model had 1.8m width by 3.1m length by 2.0m hcight and contained five levels of reinforcing strips. Each strip was 15mm wide by 1mm thick by 2.5m long and was spaced 40cm vertically and 10cm horizontally center-to-cencer. Two back fill materials a sand and a silty clay, each with two density levels, were investigated. The baekfill surfuce carried either a uniform surcharge pressure or a strip pressure. Both weight-induced aand surcharge-induced vertical pressure, lateral pressure, tensile strip force, and lateral facing deformation were measured and analyzed.